Improvement in plows



v G. ESTERLY.

Plow Standard.

No. 12,381. r w Patented Feb. 13, 1855.

UNITED STATES PATENT OFFICE.

GEO. ESTERLY, OF HEART PRAIRIE, WISCONSIN.

iM PR'OVEMENT IN FLOWS.

Specification forming part of Letters Patent No. 12,381, dated February 13, 1855.

To all whom it may concern:

Be it known that I, GEORGE ESTERLY, of Heart Prairie, in the county of Walworth and State of Wisconsin, have invented a new and Improved Plow Standard; and I do hereby declare that the following is a full, clear, and exact description of the'same, reference being had to the annexed drawings, making a part of thisspecification, in-w'hich- Figure l is a perspective, view of my improved plow-standard complete, all the parts being attached or connected together. Fig. 2 is a perspective view of the same, with the formlay plate detached or removed. Fig. 3 is a detached plan or top view of the form-lay plate.

Similar letters of reference indicate corresponding parts in the several figures.

The nature of my invention consists in the peculiar construction of the standard, which will be hereinafter fully explained, whereby plows will be made more durable and a proper relative position of the inoldboard and share obtained in plows of all sizes.

To enable others skilled in the art to fully understand and coustructmy invention, I will proceed to describe it.

G, Figs. 1 and 2, represents a curved standard, and H represents what is technically termed the f landside, the above-named parts being connected and forming the usualstaudard for plows.

K represents the form Jay, one end of which is attached near the connected ends of the standard G and landside H. The upper surface of the form-lay is concave, and corresponds in' form with the mold-board of the plow. The standard, landside, and fornhlay lay, so as to form an entire steel surface, the

may all be cast in one piece.

A,Fi gs. 1 and 2, represents a raised surface upon the standardGaudtorm-lay. Thisratsed surface may be cast with the other artsebeve named, or it may be made separately meat;- tached by bolts.- It should be constructed of either chilled cast-iron or steel, and its object is to prevent wear, which is very great upon that portion of the plow on account of the friction of the earth in passing over'it. In the ordinary plows this portion or point of the standard in course of time is frequently so much worn as to impair the good working of the plow, while the other parts are comparatively good. The portion A is raised sufiiciently to correspond to the thickness of the mold-board and share.

B, Figs. l and3, is a projection or ledge on the upper surface of the form-lay. This projection or ledge does not extend the whole width or breadth of the form-lay, and rabbets D D E E are therefore formed on the upper edges of the form-lay, as shown in Fig. 1.

The mold-board and share are bolted on the edges of the form-lay, the rabbets D D E E forming supports or guards to the same, and the edges of the mold-board and share are in contact with the edges of the projection or ledge B, the ledge or projection being between them. .The object of the form-lay is to give strength and uniformity of shape to the plow, so that the mold-board andshare will always have the same relative position; and all plows constructed with my improved standards, however much they may vary in size, will Work equally well, because the proper position of the above-named parts is in all casesobtained.

The use of the ledge or projection B allows mold-hoards and shares of various thicknesses to be used. In sandy soil they may be con'- strncted of thinner metal, and a narrower share. may also be bolted to the rabbet E E, and in case either of the above parts are injured or become used new ones may be readily replaced.

The re-ess J in the upper part of the standard G is for the purpose of securing the beam to the standard, and the ear 0 on the standard is for the purpose of securing the mold-board to the standard.

For prairie soils the ledge or projection B is omitted, as shown in Fig. 2, and a steel moldboerd and share may be secured to the form'- share and mold-board being fitted'around the raised surface A.

I .am' aware that a standard has been cast with wings to support the shares and moldboards; but.

What I claim as new, and desire to secure by Letters Patent, is--= J Casting the standard G with raised portions A,landside H, and form-lay K, all in onepiece, to be employed either with or without projection B, as set forth.

eno. ESTERLY.

Witnesses A. R. PIPER, JOHN H. 000mm. 

